Introduction: Indoor public swimming pools have many lovings in all seasons. The water in swimming pools can be a good carrier for transmission of fungal, parasitical, and bacterial diseases.Materials and Methods: In this study parasitic and fungal contaminations of four covered active swimming pools in URMIA city within one year in four seasons were evaluated. Samples were collected by a handle plastic pump. All samples were collected within 2 hours and sent them to laboratory from the parasitic contamination point of view, 8 sample of 200 ml and 8 samples of 1000 ml in each month were collected from the surface and deep parts of pools. The related examinations were achieved by the Membrane filter and sedimentation, leeds ΙΙΙ Method. For the qssessing of fungal contamination, 8 samples of 200 ml in a sterilized bottle were collected every month from swimming pool, then the method of filtration and cultivation samples were used. In addition to the above information, some parameters such as; temperature, Residual chlorine, PH, Turbidity and the number of swimmers were studied.
Results: The results of this research indicated that, the average temperature, PH, residual chlorine and turbidity of water were respectively; 29.9co, 0.6, ppm, and 0.8 NTU The most comman fungi recovered were as follows; candida (22.9%) Rhizopus (4.16%), Aspergillus (56.25%). Parasitic examinations showed that among the colleted samples; 47 Parasitic contamination cases were identified and the most of them were; Entamoeba-coli 13 cases (27.6%), Hymenolepis-nana 1 case (2.2%), Oxyur2 cases (4.2%) and finally 31 cases (65.9%) larva from the family of Rhabditida and Nematodes.
Discussion: With respect to above results which obtain in this research, we can justify that, all swimming pools can be contaminated by types of fulgus and parasitics. For the prevention from fungal contamination of swimming pools, bathing of feet and washing of body with soap can be useful before entrance to swimmil1g.However, attention to the standard of chlorine residual as well as personal and environmental health can be effective in the reduction swimmings of contamination.